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A Volumetric Study of Liquid Crystal Phase Transitions in Thermotropic and Lyotropic Liquid Crystals
Abstract
The results are reported of voltmetric studies of the nematic - isotropic and smectic C - nematic transitions for di-heptyloxyazoxybenzene (70AB), the nematic - isotropic
and smectic A - nematic transitions for cyano-octyloxybiphenyl
(80CB), and the lipid bilayer phase transition for di-palmitoylphosphatidylcholine
(DPPC). Data was taken by changing the pressure at constant temperature. Values for ~, isothermal compressibility (Km), specific volume, and ∆ V are reported.
Finally, comparisons between our data and previous work are
drawn.
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